150 tyre on kr1s

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headcoats
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150 tyre on kr1s

Post by headcoats » Sun Mar 10, 2019 6:34 pm

Anyone fitted a 150 tyre and how much gap is left tyre to chain in mm ?
Also I know it's a 150 but could someone put the verniers across the broadest part please ?
I have machined 5mm off my sprocket carrier too for the LC build and fearing I won't have room šŸ˜±
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Luders
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Re: 150 tyre on kr1s

Post by Luders » Sun Mar 10, 2019 7:07 pm

loads of space Martin, I used to run them in 2011

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Re: 150 tyre on kr1s

Post by headcoats » Sun Mar 10, 2019 7:11 pm

Cheers Luders but I have machined 5mm off the carrier , so the chain will be 5mm closer to the tyre :shock:
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Luders
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Re: 150 tyre on kr1s

Post by Luders » Mon Mar 11, 2019 9:31 am

Should still be okay, I ran 160's in a std swing arm on the bike you saw

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KR-1R
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Re: 150 tyre on kr1s

Post by KR-1R » Tue Mar 12, 2019 7:36 pm

is a function of tyre brand which for a nominated size could be wider by +/- 10mm
and rim width - same for cars
being the running gear is in a different chassis/engine output centreline
if it doesnt fit then offset front sprocket and respace the rear to suit - that youve already done...

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Re: 150 tyre on kr1s

Post by headcoats » Tue Mar 12, 2019 7:48 pm

Yes but with the puny LC chassis it's like threading a needle , hence the carrier being machined 5mm in so it misses the frame plate

I know a 140 fits but had a feeling with the 150 it may not
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Re: 150 tyre on kr1s

Post by headcoats » Wed Mar 20, 2019 10:15 am

I have a 150 tyre here , not fitted to the rim and it measures 160mm across :shock: :shock:

That's why I need someone with a BT tyre fitted to give me the measurement please :mrgreen:
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Luders
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Re: 150 tyre on kr1s

Post by Luders » Wed Mar 20, 2019 12:47 pm

On a rim it would never be 160

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Garry
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Re: 150 tyre on kr1s

Post by Garry » Wed Mar 20, 2019 1:13 pm

I have a BT090 150 section and edge of tyre to inside of chain is approx 12mm (can't measure exactly)

Hope that helps

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Re: 150 tyre on kr1s

Post by headcoats » Wed Mar 20, 2019 7:17 pm

Cheers Gary

Well with my 5mm machined off the sprocket carrier then that measurement will give me 7mm clearance :P

How about cutting a piece of carboard 12mm wide and see how it sits between the chain and tyre

Thanks in advance :lol:
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Re: 150 tyre on kr1s

Post by Garry » Thu Mar 21, 2019 11:21 am

That measurement should be good enough for what you need - it could have a 2-3 mm tolerance either way anyway depending on how accurately the wheel is lined up.
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